Richard Bach is indeed variable.
Reading books like "A gift of wings" or "Biplane" nobody writes better about what it is to be an Aviator.
Reading books like "Bridge across forever" I really wonder what he was smoking.
Some stuff in the middle, like "Jonathon Livingstone Seagull", "Illusions" or "Out of my mind" need a pinch of salt, but are enjoyable.
Incidentally, 3 times I've loaned my copy of "A gift of wings to somebody" who has then given it back half read, telling me that they couldn't bear not to actually own a copy and have gone and bought their own to finish it. Strangely, that's how I met it too.
G